Coroner Sean McGovern said in a narrative verdict that Julian Mynott and his son Freddie died in a terrible accident on Saturday 12th May 2012.
Mr Mynott and his 3 children had gone out on a short trip in their boat on the river Avon in Barford.
The boat went over the lower weir and got caught in the undercurrent.
He also said that Mr Mynott could have saved himself but he chose not to and died in an attempt to save his children.
Local residents managed to save the 2 older children Archie and Florence.
Warwickshire Police have released images of the father and son who died in a boating accident near Warwick on Saturday.
Family and friends are sharing their grief following the death of a father and his son.
A man and a child have died after the boat they were in overturned at a weir on the River Avon at Barford, near Warwick.